基于改进生态足迹模型的九江市可持续发展能力研究

Research on Jiujiang’s Sustainable Development Capacity Based on Improved Ecological Footprint Model

文章在对传统生态足迹模型进行改进的基础上,构建了基于国家公顷的生态足迹模型,并优化了均衡因子和产量因子。文章对2007年-2016年九江市的可持续发展水平进行研究,发现:①九江市各类型土地的生态足迹在稳步增加;耕地的人均承载力水平呈递减的态势,其余各类土地的人均生态承载力整体上不断增多。②虽然九江市整体的生态盈余为正数,但其不断减少,表明九江市的可持续发展能力在不断降低,生态环境的承载力水平面临严峻的挑战。

Based on the improvement of the traditional ecological footprint model,this paper constructed an ecological footprint model based on the national hectare,optimized the balance factor and yield factor.On this basis,the sustainable development ability of Jiujiang from 2007 to 2016 was studied.The results showed that:①The ecological footprint of various types of bio-productive land in Jiujiang was increasing steadily;the per capita carrying capacity of cultivated land was decreasing,and the per capita ecological carrying capacity of other types of bio-productive land was increasing.②Although the overall ecological surplus of Jiujiang was positive,its continuous reduction showed that the sustainable development ability of Jiujiang was decreasing and the level of carrying capacity of ecological environment was facing severe challenges.